Written on April 16, 2001

Topology Seminar 2000 (April 2000 --- March 2001) was held on
every Tuesday.

The talks were given mainly in Japanese.

Topology Seminar 2000 started on April 18, 2000.

The seminars on April 18, May
23, 30, June 13, 23, October 3, 10, November 7, 14 and February 6
were Topology-Geometry
joint seminars.

The seminar on October 24 was a Topology & Applied Geometry
joint seminar.

Japanese
version is here.

- 18/04 Yoshio Agaoka
(Hiroshima Univ.)

On the variety of 4-dimensional Lie algebras, and left invariant symplectic structures. I - 25/04 Ichiji Kurazono
(Hiroshima Univ.)

Locally oriented cobordism groups and a spectral sequence - 02/05 No seminar
- 09/05 Masakazu Teragaito
(Hiroshima Univ.)

Toroidal Dehn fillings and lens spaces - 16/05 Akifumi Sako
(Hiroshima Univ.)

Euler number of instanton moduli space and Seiberg-Witten invariants - 23/05 Masaaki Umehara
(Hiroshima Univ.)

An analogue of the UP-iteration for constant mean curvature one surfaces in hyperbolic 3-space - 30/05 Yoshio Agaoka
(Hiroshima Univ.)

On the variety of 4-dimensional Lie algebras, and left invariant symplectic structures. II - 06/06 Andras Szucs (Eotvos
Lorand University, Hungary)

On multiple points of immersions - 13/06 Yoshio Agaoka
(Hiroshima Univ.)

On the variety of 4-dimensional Lie algebras, and left invariant symplectic structures. III - 23/06 Ryushi Goto (Osaka
Univ.)

Mirror symmetry of generalized G_2 and Spin (7) manifolds - 27/06 No seminar
- 04/07 Lucien Guillou
(Fourier Institute at Grenoble University, France)

About germs of homeomorphisms of the plane around an isolated fixed point of index not one - 11/07 Toshio Yoshida
(Hiroshima Univ.)

Stable extendibility of vector bundles - 03/10 Masahito Toda
(Ochanomizu Women's Univ.)

Representation of finite groups and the first Betti number of coverings of a universal hyperbolic Borromean orbifold - 10/10 Naoya Ando (Univ. of
Tokyo)

Index of isolated umbilical points on surfaces - 17/10 Osamu Saeki (Hiroshima
Univ.)

Codimension one embeddings of product of three spheres - 24/10 Antonio
Hernandez-Barrera (Havana Univ.)

The deflation of polygons - 31/10 Carles Bivi\`a-Ausina
(Univ. Valencia, Spain)

The integral closure of ideals, Lojasiewicz exponents and Newton polyhedra - 07/11 Masaaki Umehara
(Hiroshima Univ.)

An analogue of minimal surface theory in SL(n,C)/SU(n) - 14/11 Nobuhiro Honda
(Hiroshima Univ.)

Deformations of LeBrun twistor spaces - 21/11 Ichiji Kurazono
(Hiroshima Univ.)

Cobordism group with local coefficients and its application to 4-manifolds - 28/11 Kazuhiro Sakuma (Kinki
Univ.)

Thom polynomials and obstruction to removing singularities - 05/12 No seminar
- 12/12 Masakazu Teragaito
(Hiroshima Univ.)

Toroidal surgeries on hyperbolic knots - 19/12 Kentarou Saji
(Hiroshima Univ.)

Singularities of non-degenerate 2-ruled hypersurfaces in R^4 - 09/01 No seminar
- 16/01 Hiroshi Goda (Tokyo A
& T Univ.)

On Heegaard structure of knot complements - 23/01

(1) Kazuichi Ikegami (Hiroshima Univ.)

Cobordism group of Morse functions

(2) Hiromitsu Shimazu (Hiroshima Univ.)

Graceful labelling of the union of C_s and P_2

(3) Kaori Sugita (Hiroshima Univ.)

Vassiliev-type invariant for knotted handcuff graphs - 30/01 No seminar
- 06/02

(1) Yuji Sano (Hiroshima Univ.)

Aperiodic tilings of the hyperbolic plane by convex polygons

(2) Naomi Rokujo (Hiroshima Univ.)

Hyperbolization of knots by crossing change

(3) Norihisa Kishimoto (Hiroshima Univ.)

Construction of discrete minimal surfaces via the theory of discrete harmonic functions

(4) Suguru Tanaka (Hiroshima Univ.)

Minimal surfaces with three catenoidal ends - 06/03 Peter D. Zvengrowski iUniv. of Calgary, Canada)

The order of line bundles and applications to smooth manifolds